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37 lines
600 B
Go
37 lines
600 B
Go
package main
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import (
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"github.com/miekg/dns"
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"strings"
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)
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type Kv map[string]int
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type UpstreamServer struct {
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domains Kv
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Proto string
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Addr string
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client *dns.Client
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}
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func (srv *UpstreamServer) match(d string) bool {
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if srv.domains == nil {
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return false
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}
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s := strings.Split(strings.Trim(d, "."), ".")
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for i := 0; i < len(s); i++ {
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s1 := strings.Join(s[i:], ".")
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if _, ok := srv.domains[s1]; ok {
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return true
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}
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}
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return false
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}
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func (srv *UpstreamServer) query(req *dns.Msg) (*dns.Msg, error) {
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res, _, err := srv.client.Exchange(req, srv.Addr)
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return res, err
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}
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